databento.io
Databento is a market data platform that provides programmatic APIs and client libraries for accessing historical and live tick-level market data with normalized schemas and both batch and streaming delivery modes.
Published Sep 2, 2026
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| Aspect | Databento | Polygon.io / Massive | AlgoSeek |
|---|---|---|---|
| Starting Price | Usage-based historical billing plus pass-through license fees; subscription plans also offered but public tier details vary | Flat-fee entry tiers commonly cited in community references; verify current pricing with vendor | Institutional/enterprise pricing; public pricing not granular in review sources |
| Primary use cases | Tick/L2/L3 research, venue-level market microstructure, backtests needing high granularity; programmatic downloads/streams and self-service licensing workflows | Developer-focused REST/WebSocket access and predictable monthly billing for retail/SMB usage; convenience endpoints for broad scans | Research-grade intraday datasets and database-style access for institutional analysis |
| Key strength | Unified schema formats and depth/order book (L2/L3) support; targeted historical slices via usage-based downloads | Predictable flat-fee plans and developer convenience endpoints; broad retail developer ecosystem | Curated institutional datasets and enterprise delivery options |
| Key weakness | Metered billing can be unpredictable for continuous large-volume usage; live vs historical alignment can require engineering work | May not offer the same depth-of-market microstructure in all plans; product positioning varies | Pricing and delivery models may not be optimized for small teams or ad-hoc API-style access |